Chicken pox - do all spots scab? Even those on palms of hands?

[TaraQ]

My son has had chicken pox. First spots appeared last Monday and, as far as I am concerned, he is fine now and spots have scabbed. I sent him to the childminder this morning but she refused to take him for the day because she has found a couple of spots on the palm of a hand that have not scabbed. Can he still be infectious? Surely if they are on the palm of a hand (and therefore always moist/not much air gets to them) they may not scab? I know that current guidelines say that children are infectious for 5 days after onset of rash. I have printed this all off to give her tomorrow and she has said that she will take him if I am certain he is not infectious anymore but I am not sure what to do. She says that she is concerned as her husband has never had it. Can anyone advise?....Thank you. x

I had chicken pox recently and saw a dr as i still had unscabbed spots after 7 days and needed signing off etc. He said it is the fluid that is infectious and that any spots with fluid in the blisters are still potentially infectious.

But isn't it an airborne infection rather than by physical contact???? I am so confused and unsure what to do!

How do people get chickenpox?

Chickenpox spreads from person to person by direct contact with fluid from broken chickenpox blisters or through the air by coughing or sneezing. Chickenpox is so contagious in its early stages that an exposed person who has not had chickenpox has a 70% to 80% chance of getting the disease.

from here:
www.dhpe.org/infect/Chicken.html

if you google it is mentioned in other places too